How to keep dog safe?
So my mom has moderate Alzheimer's.
We have a fenced in pen for the dog in the back and there is a gate in front of the front door, but I really fear my mom accidentally letting the dog out. And now that the weather is nice, my mom has been wanting to go outside more and the risk level is up. We have tile trackers (like air pods but for android) that we could attach to the dog, but I don't think it is enough. It would be too expensive/impractical to fence in the front yard. Thought about a geofence collar like Halo.
Also, we have an attached garage that connects to the kitchen. The garage with an overhead door and a regular door that lead to the driveway. I thought about taking the moveable pen we used when our dog was a puppy and using it to at least block off the way to the small, regular door that we (including my mom) typically use. Not a foolproof solution, but it would make it harder to accidentally let the dog out.
Does anyone have any recommendations? Maybe geofence collars you have tried? I've never used one on our dog before, and I read it takes training. This also just need to be able to work in a normal suburban neighborhood with a good number of trees, but it is not a wooded area.
If it helps, the dog is a three year old small breed, about 22 lbs.